nikbabchenko

## mongodb_cheat_sheet.md

      
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                nikbabchenko
                / mongodb_cheat_sheet.md
            
            
              Created
              January 26, 2022 17:51
                — forked from bradtraversy/mongodb_cheat_sheet.md
            
              
                MongoDB Cheat Sheet
              
          
    MongoDB Cheat Sheet

Show All Databases

show dbs

Show Current Database


## resize-image.js
// The function that scales an images with canvas then runs a callback.
function scaleImage(url, width, height, liElm, callback){
	var img = new Image(),
	width = width,
	height = height,
	callback;

	// When the images is loaded, resize it in canvas.
	img.onload = function(){
		var canvas = document.createElement("canvas"),

## squash-commits.sh
git rebase --interactive HEAD~2

#  we are going to squash c into b
pick b76d157 b
pick a931ac7 c

# squash c into b
pick b76d157 b
s a931ac7 c

## image-arraybuffer.js
// Simulate a call to Dropbox or other service that can
// return an image as an ArrayBuffer.
var xhr = new XMLHttpRequest();

// Use JSFiddle logo as a sample image to avoid complicating
// this example with cross-domain issues.
xhr.open( "GET", "http://fiddle.jshell.net/img/logo.png", true );

// Ask for the result as an ArrayBuffer.
xhr.responseType = "arraybuffer";

## debounce.js
/**
 * Simple debounce function; usage:
 *
 * Create a function that only can be called once every 500 ms
 *
 *      var df = debounce(function() {
 *          ... func body ...
 *      }, 500)
 *
 * Bind the function to an event

## singleton.js
var dom = (function() {
    var _counter = 0;
    var instance;

    function generateId () {
        return "customId" + _counter ++;
    }

    function create (targetName, id) {
        var el = document.createElement(targetName);

## open_app.html
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<title>Open App</title>

<!--
URL Params:

customSchemeURL: Your custom scheme app

## README.md

      
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                nikbabchenko
                / README.md
            
            
              Created
              February 28, 2018 15:26
                — forked from pbojinov/README.md
            
              
                Two way iframe communication- Check out working example here: http://pbojinov.github.io/iframe-communication/
              
          
    Two way iframe communication

The main difference between the two pages is the method of sending messages. Recieving messages is the same in both.
Parent

Send messages to iframe using iframeEl.contentWindow.postMessage
Recieve messages using window.addEventListener('message')
iframe


## iframe.html
<!DOCTYPE html>
<html>
<head>
	<title>My Iframe</title>
</head>
<body>

<button>Botão</button>

<script type="text/javascript">
	// The function that scales an images with canvas then runs a callback.
	function scaleImage(url, width, height, liElm, callback){
	var img = new Image(),
	width = width,
	height = height,
	callback;

	// When the images is loaded, resize it in canvas.
	img.onload = function(){
	var canvas = document.createElement("canvas"),
	git rebase --interactive HEAD~2

	# we are going to squash c into b
	pick b76d157 b
	pick a931ac7 c

	# squash c into b
	pick b76d157 b
	s a931ac7 c
	// Simulate a call to Dropbox or other service that can
	// return an image as an ArrayBuffer.
	var xhr = new XMLHttpRequest();

	// Use JSFiddle logo as a sample image to avoid complicating
	// this example with cross-domain issues.
	xhr.open( "GET", "http://fiddle.jshell.net/img/logo.png", true );

	// Ask for the result as an ArrayBuffer.
	xhr.responseType = "arraybuffer";
	/**
	* Simple debounce function; usage:
	*
	* Create a function that only can be called once every 500 ms
	*
	* var df = debounce(function() {
	* ... func body ...
	* }, 500)
	*
	* Bind the function to an event
	var dom = (function() {
	var _counter = 0;
	var instance;

	function generateId () {
	return "customId" + _counter ++;
	}

	function create (targetName, id) {
	var el = document.createElement(targetName);
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>Open App</title>

	<!--
	URL Params:

	customSchemeURL: Your custom scheme app